Question

The exterior angle is 120 degrees then find the measure of the other three angles

Answer 1

here is your answer
Interior angle=
x + 120 =180
x = 180-120
x=60
Let x be the unknown angles
So,
x +x + x + 60
We know that sum of all angle is 360
So now,
x + x + x +60 = 360
3x + 60 = 360
3x = 360 -60
3x = 300
x =300÷3
x=100
Therefore,
The angles are 100°,60°,100° & 100°

HOPE IT HELPS
please mark this answer as brainliest answer only if you like it
please